Helen c



Patented Aug. 12, 1919.

2 SHEETS-SHEET l 'wefnoz JAI: n E H- CENTER- 1.- H. GENTER, FILM REWINDER.

APPLICATION FILED APR. I9. I9I6.

l. H. GENTEH.

FILM REWfNDER.

APPLICATION msn APR. 19. |916.

yl 3 l 3,084. Patented Aug. 12, 1919.

2 SHEETS-SHEET 2.

35% JAQUE H IENTEIR amu TMB COLUMBIA PLANCIHRAPH C0.. WASMlNToN. D. C.

UNITED STATES PATENT OFFICE.

JACOB H. GENTER, 0F N'EWBURGH, NEW YORKj HELEN 'GENTER EXECTRX OF SAID JACOB H. GENTER, DECEASED.

FILM-RE'WINDER.

Speci'cationof Letters Patent.` lfadrierned Allg. 12, 1919. i

Application filed April 19, 1916. serial 110.92332.

yState of New York, have invented certain new and useful Improvements in Film-Rewinders, of which the following is a specification. l

This invention relates to improvements in film rewinders and its leading object is to provide a film rewinder with improved tensioning and wlping means, and an eXtensionable reel supporting arm coperating4 with the tensioning means.

Another object of the invention is the provision of a self balancing film tensioning device arranged to wipe opposite sides of the film during its travel from one reel to the other.

A still further object of the invention is the provision of a lm rewinder with an improved wiper and means for detachably securing to the drum of the wiper an absorbent fabric, as felt.

A still further object of the invention is the provision of an improved frame for the film rewinder.

With the above and other objects in view the invention relates to certain useful combinations, constructions and arrangements of parts, clearly described in the following specication and vfully illustrated in the accompanying drawings, in which Figure 1 is a side elevation showing my improved film rewinder.

Fig. 2 is apdetail sectional view taken on line 2-2 of Fig. l.

Fig. 2El is a detail view, partly in section, of the film wiping and tensioning device.

Fig. 3 is a detail view showingva portion of the frame with the parts which are bent to ,form container shelves.

Fig. 4 is an enlarged sectienal View' takenon line ci Fig. l.

Fig. 5 is an enlarged sectional view of a portion of the film winding machine.

Fig. 6 1s a detail sectional view through one of the wiper vdrums used in the preferred form shown in Figs. 1 and' 2.

Fig. 7 is a transverse sectional view of a modified form of wiping and tensioning drum.

Fig. 8 is a fragmentary view of the frame provided with a moded wiping and tensioning mechanism.

Referring to the accompanying drawings illustrating thepractical embodiment of my invention 5 designates the -main frame, which is formed on its lower edge portion with an inset bracket flange 5-, which is adapted to seat on theupper edge portion of a table or other support and be secured thereto. The lower pendant portion of the frame 5 is provided with holes 5 whereby 1t may be secured to the side edge portion of the table or support, as will be readilyY and 9, which are slidably supported be`r tween said flanges and against said frame- 5. The frame 5 is also formed with hori' zontally disposed slots 10 and 11 through which the shanks of the wing screws 12 eitend.A The inner ends` of the screws 12 are threaded in the nuts 13, which are xed to the inner end portions of the eXtensionable reel supporting arms@ and 9, and the outer ends of s aid screws are formed with'heads 12.3,` which are ada ted to bear a ainsi; the @titer face of the rame 5 when t screws The flanges are tightened to clamp the arms to the frame 5 against sliding. C

The arm 8 is provided on its end portion with an upper bearing 14, through which the reel supporting shaft 15 is journaled, and on the end of this shaft a small pinion gear 16 is fixed. The pinion gear 16 is engaged by the internal gear teeth 17"L of the internal gear 17 which is fixed to the shaft 18, which is j ournaled in the lower bearing 19 formed on the end portion of the arm 3. Tl e body of the internal gear 17 forms a shield or case to cover the small gear and the internal gear teeth meshing' therewith, and is provided with a suitable handle 20, whereby it may be operated. The reel supporting shaft is inclined upwardly and out- Vof the frame, different containers, each being provided with suitable cement or adhesive material.

The film is passed between the wiping and tensioning drums, over one drum and wardly of the arm 8, so that the reel will under the other, so that both sides ofthe slide by gravity toward the small gear 16, and said shaft 15 is also provided with a suitable key 15a, whereby the reel may be keyed thereto.

The arm 9 is provided with a terminal bearing 21 in which the shaft 22 is journaled, on which shaft the feed reel is mount-V ed and keyed, as will be understood. One end of the shaft 21 has a circular brake element 2la which is engaged by the brake 23, the body of which is formed of spring metal, and one end of which is secured to the arm 9, so that the opposite free end will bear against the shaft 21 and retard its rotation. The tension of the brake 23 is varied by means ofthe screw 24, which is threaded on the projection 24 fixed to the arm 9.

On the' end portion of' the arm 7b of the fram-e 5 the bearing 26 is provided, and through this bearing the pin or shaft 27 is extended. On one end of the pin or shaft 27 the bar 28 is pivotally supported. The bar 28 is equipped with wiper and tensioning members 29 and 30, which are spaced from each other a slight distance on opposite sides of the pin or shaft 27. The inembers 29 and 30 are secured to the end portions of the bar 2S by means of screw-s or pins 31. Each member consists of a drum 32, the body of which is formed with a longitudinally disposed slot 32a and over this body the felt or absorbent fabric ,material 33 is arranged. The free ends of the felt or fabric 33 are inserted in the slot 32a and aV holding bar 34 is .forced into said slot between the inserted free ends of the fabric toretain the fabric stretched around the -drum 32.

The bar 28 is adaptedv to oscillate under the stress of the film during its travel from the feed reel to the take-up reel, and to limitv filmV are"simultaneously wiped during its travel from the feed reel to the take-up reel. As the elevation of the film wound on each reel varies the bar and its wiping and tensioning drums willbe automatically oscillated, to vary the tension on the film, and Y the pressure exerted on one drum will be automatically transmitted to the other drum, thus providing an automatic tension balancing action. By varying the extension of the reel supporting arms S and 9 the tension exerted by the wiping members upon the film may be regulated.

In Figs. 7 and 8 I show a modified construction of the film wiper and tensioning device, and the means for detachably securing the felt to the wiping drum. In these figures 5W designates the frame, which is provided with a fixed bearing 40, located near the terminal portion of the arm 9X. A bar L11 is rockingly supported on the bearing 40 by the pin 42, which projects through said bar i1 at a point substantially midway of its opposite ends. The pin 42 may be provided with a wiping and film tensioning member or roller 43. On the opposite ends of the support in bar il the film wiping and tensioning members or drums i4 and l5 are arranged.

As shown in Fig. 7, each of the hn tensioning and wiping members includes a cylindrical support 46a carried by the bar 41. On the cylindrical support L161 the metal drum or wall i6 is mounted, and the edges 417 a and 4:71 of this metal drum are spaced slightly from each other and deflected slightly inward, or rounded, so as to provide yieldable gripping jaws. The periphery of the cylindrical support 46a is longitudinally cut-away under the deflected yielding gripping jaws or edges 47a and 417", as indicated at 4S. Over the metal drum or wall 16 the wiping fabric or material i9 is stretched, the side edge portions 49 of which are deflected inwardly toward the axis of the roller, over the deflected yielding gripping jaws 4'?n and 47". These gripping jaws project toward each other to grip the sidefaces of theloc-lring rod or member 50, the base or underside of which is formedy with o-ppositely inclined or beveled faces 50', and the sides of which are formed with longitudinal grooves 50a. The end supports 46 are formed with inclined faces 46 adapted to be engaged by the inclined faces 50 of the locking bar 50, and said inclined faces 46 are spaced from the gripping jaws'47a and 47b to permit said jaws to yield inwardly. The edges of the wiping fabric are shown extended inwardly past the edges of the gripping j aw-s 47aL and 47", so that the said edges of the wiping fabric or material will be forced by said yielding gripping jaws into the grooves 50@l and be therein retained against accidental displacement. Owing to the angle of deflection of the free edges of the drum the gripping jaws formed thereby coperate with thelocking bar 50 to stretch the fabric when said bar is disposed on the edges of the fabric and pressed inwardly between the yielding gripping jaws.

Having described my invention, l claim and desire to secure by Letters Patent 1. A film rewinder having a main frame, film tensioning means on the frame, and a film reel supporting arm adjustable on the frame relative to the tensioning means.

2. A film rewinder having a main frame, a film tensioning means on the frame, comprising a centrally pivoted frame, and film engaging members secured thereto on opposite sides of said pivot, for engaging opposite sides of the film, and a reel supporting arm adjustable on said frame toward and from said tensioning means.

3. A film rewinder consisting of a main frame formed with lateral guide flanges and a slot located between said flanges and disposed horizontally on the frame, a reel supporting arm adjustable on said guide anges, said flanges being located one above the other and the lower fiange forming a seat for the arm, and a screw threaded into the arm through the slot and providing means for clamping the arm against the main frame.

4. A film rewinder having a main frame provided with horizontally disposed parallel supporting flanges, supporting arms each having portions adjustably supported between said flanges, a reel support carried by each of said arms, and means for securing said arms rigidly to said frame in their adjusted positions, and a film tensioning device secured to said frame, whereby each of said reel supports may be independently adjusted with respect to said tensioning device.

5. A film rewinder having a main frame, a pair of reel supporting devices secured thereto, one of'said reel supporting devices being provided with means for eectmg a travelof the lm from one reel supporting device to the other, and a film tensioning device y located between said film supporting devices, and comprisingl a rocking frame supported on a central pivotal connection, and a pair of film engaging members secured t0 said rocking'frame, on opposite sides of the said pivotal connection, for engaging opposite faces of the film.

6. A film rewinder having a main frame, a' pair of reel supportingdevices secured lthereto,-one of said reel supporting devices being provided with means for effecting a travel of the film from one reel supporting device to the other, and a film tensioning.

deviceA located between said film supporting devices, and comprising .a rocking frame supported on a central pivotalV connection,

Y and a pair of film engaging members secured to the other, and a film tensioning device located between said film supporting devices, and comprising a rocking frame supported on a central pivotal connection, and a *pair of lm engaging members secured to said rocking frame, on opposite sides of the said pivotal connection, for engaging opposite faces of the film, and means for adjusting said reel supporting devices toward and from said film tensioningdevice.

8. A lm rewinder having a main frame, a pair of horizontal film roll supporting arms projecting from said main frame in opposite directions, and adjustable horizontally with respect to said main frame, and a film tensioning device comprising a rocking frame mounted on a pivotal support secured to the main frame, and engaging said rocking frame centrally, a pair of film engaging members secured t0 said rocking frame on opposite sides of its central pivotal connection, for engaging opposite faces of the film, a film roll support carried by each of said adjustable arms, and means operatively con, nected with one of said film roll supports for effecting a travel of the film from one of said film roll supports to the other.

9. A film rewinder having a main frame provided with horizontally disposed flanges projecting from one face of the frame, supporting arms having a guiding and supporting engagement between said flanges, and

being horizontally adjustable therein, and

extending in opposite directions from the main frame, means for clamping. said arms to the main zune in different adjusted poing frame on Opposite sides of its central 10 sitions, a film roll vsupport carried by each pivot, and a spring interposed between said of said arms, means operatively connected rocking frame and said main i'izune.

with onei of said iilm iplll supports for ei'- In testimony whereof I affix my signature. fecting t 1e travel of the m, and t lm tensioning device, secured to the matin fiume, JACOB H' GENTER independently of seid arms, and comprising Witnesses:

it centrally pivoted rocking frame, a pair of PEARL M. VAN Scoi,

film engaging members secured to seid iock- HELEN M. WEEKS.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents'.z Washington, D. C. 

